A company may be "highly profitable" in terms of adj EBITDA. Dig beneath that number and you may find a situation in which cash distributions are impossible. In fact, the company eats cash.
How could a company eat its cash?
1. CAPEX: We regularly see orgs where annual maintenance CAPEX is 1/5-1/3 of EBITDA (or more). That's *before* thinking about growth investments in new equipment to increase capacity/capability.